Waterless cooker



Sept. 4, 1928.

A. L. ROSENHElMER, JR

WATERLESS COOKER Filed Oct. 10, 1927 Patented Sept. 4, 1928 warren stares ADOLYH ROSENHEIIVIER, JR., OF KEWASKUIVT, WISCONSIN, ASSIGNOR TO KEWASKUM ALUMINUM QOIIIPANY, OF KEWASKUM, WISCONSIN.

wArnnLnss COOKER.

Application filed October 10, 1927. Serial No. 225,208

This invention pertains to improvements in cooking vessels, and more particularly to that type commonly known as waterless cookers, wherein the cover is clamped to the vessel to retain sufticient steam generated from the contents of the vessel, to perform the cooking operation.

The invention has primarily for its object to provide a simple, inexpensive and efiicient cooker of the foregoing character, with improved and simplified means for clamping the cover to the vessel.

A further object resides in the novel arrangement of the various parts of the cooker to provide a water seal between the cover and the vessel and at the same time hold the inner container in spaced relation to the bottom receptacle.

With the above and other objects in view, which will appear as the description proceeds, the invention resides in the novel construction, combination and arrangement of parts substantially as hereinafter described and more particularly defined by the appended claims, it being understood that such changes in the precise embodiment of the herein disclosed invention may be made as come within the scope of the claims.

In the accompanying drawings is illustrated one complete example of the physical embodiment of the present invention constructed according to the best mode so far devised for the practical application of the principles thereof.

The single view is a part section and a part side elevation of a vessel constructed in accordance with the present invention.

Referring now more particularly to the accompanying drawing, the numeral 1 designates a bottom container provided with a seat 2 adjacent its top edge, formed by bending the side wall laterally and then vertically, the vertical portion terminating in an outwardly rolled peripheral bead'3.

Positioned within the lower container 1 is an inner container 4, the upper edge of which is provided with a lateral peripheral flange 5 terminating in a reinforcing bead 6 which engages the seat 2 of the "lower receptacle. It will be clearly seen in the drawing that the inner container 4 is of less diameter than the bottom receptacle, which provides a space between the wall of the bottom receptacle and the inner container to permit steam to circulate around the latter and scribed.

thoroughly heatits contents. The annular reinforcing bead 6 carried by the flange 5 of the inner container, terminates short of the vertical top portion of the lower receptacle, for a purpose to be hereinafter de- The numeral 7 designates a cover pro vided with a depending vertical w'all'8 terminating in an outturned peripheral bead 9, which bead is adapted to seat betweenthe outer edge of the lateral flange 5 of the inner container and top vertical wall of the lower container, when the inner container is enn ployed. Thus it will be seen that the peripheral head 9 of the vertical wall 8 ofthe cover serves to centrally space the inner container with relation to the bottom vessel 1, and thus provides a space between the peripheral bead G of the inner container and the top vertical portion of the wall of the bottom vessel, in which condensation will accumulate to form a water seal for the cover.

Secured to the outer wall of the bottom vessel 1 are the usual spaced U-shaped handles 10, which handles serve two functions, as will be hereinafter more fully explained.

For the purpose of clamping the cover 7 on the bottom container, a pair of resilient clamps 11 are provided. These clamps are formed from strips of resilient material and are provided with lateral portions 12 which may be riveted, or otherwise secured, to the top of the cover 7. Extending upwardly from the lateral portions 12 are the arched portions 13, which extend downwardly and terminate in hooks 14 adapted to engage the handles 10. The hooks terminate in inclined lips 15, which, upon positioning the cover upon the vessel, engage the handles 10, camming the hooks inwardly past the handles. It will readily be appreciated that the lips 15 also facilitate release of the hooks 14 for the purpose of removing the cover.

In order to relieve excessive pressure within the vessel a conventional gravity released valve 16 is provided.

From the foregoing, taken in connection with the accompanying drawing, it will be seen that an extremely simple, inexpensive, and efficient structure, has been provided, wherein the cover, which may be readily attached or removed from the lower receptacle, is securely clamped thereon by the resilient clamps 11 which engage the handles 10.

Thereafter the vessel may be handled vby lifting the same with the cover handle 17. By arching the clamps 11 upwardly and outwardly to engage the handles 10, a maximum amount of resiliency is obtained with a minimum amount of strain upon the clamps, the reverse of which is true where the clamps are bent downwardly to engage the bottom of the seatfor'med in the lower,

receptacle.

It will further be appreciated that a very simple structure has been provided for centrally spacing the inner container from the wall of the bottom receptacle, and at the same time afford a water seal between the lower receptacle and cover, so desirable'in utensils of this type. I

While I have shown and described in some detail. the use for an inner container, it will be understood that this is not essentialto the operation or" the cover clamps, and in some instances the same may be eliminated.

I claim 1. A cooking vessel comprising a bottom container provided with a lateral seat adj acent its upper edge, a cover having a lower rim removably positionedwithin said lateral seat, I said bottom container, having outwardly projecting looped handles, inverted U-shaped, upwardly arched, spring latching members carried by said cover in corresponding positions to the handles on the bottom container, each of said latching mem bers having one of thearms rigidly secured to said cover and having its other arm extending downwardly for passage through the corresponding handle, and provided with an outwardly projecting cam portion adapted to snap beneath the handle and draw the cover downwardly.

2. A cooking vessel comprising abottom container provided with a lateral seat adjacent its upper portion, said seat, having an annular bottom portion and an upwardly extending cylindrical portion offset from the outline ()1 the main body of the bottom container, an inner vcontainer of less depth and smaller diameter than said bottom container and having an outwardly extending beaded flange adapted to rest upon the bottom portion of the seat and stopping short of the cylindrical portion, a cover having a downwardly extending flange provided with a bottom bead adapted to wedge between the cylindrical portion of said seat and the head of said innervcontainer to thereby effect a seal and also to center said inner container, and means for holdingsaid cover in place.

In testimony that I claim the foregoing I have hereunto set my hand at Kewaskum, in the county of Washington and State of lVisconsin.

'ADOLPH L. ROSENHEIMER, J 

